<?php

/*
 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
 * Copyright (C) 2006-2009 Dan Fuhry
 *
 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
 */
 
function page_Admin_SecurityLog()
{
	global $db, $session, $paths, $template, $plugins; // Common objects
	global $lang;
	if ( $session->auth_level < USER_LEVEL_ADMIN || $session->user_level < USER_LEVEL_ADMIN )
	{
		$login_link = makeUrlNS('Special', 'Login/' . $paths->nslist['Special'] . 'Administration', 'level=' . USER_LEVEL_ADMIN, true);
		echo '<h3>' . $lang->get('adm_err_not_auth_title') . '</h3>';
		echo '<p>' . $lang->get('adm_err_not_auth_body', array( 'login_link' => $login_link )) . '</p>';
		return;
	}
	
	// if ( defined('ENANO_DEMO_MODE') && substr($_SERVER['REMOTE_ADDR'], 0, 8) != '192.168.' )
	// {
	//   die('Security log is disabled in demo mode.');
	// }
	
	echo '<h3>' . $lang->get('acpsl_heading_main') . '</h3>';
	
	// Not calling the real fetcher because we have to paginate the results
	$offset = ( isset($_GET['offset']) ) ? intval($_GET['offset']) : 0;
	$q = $db->sql_query('SELECT COUNT(time_id) as num FROM '.table_prefix.'logs WHERE log_type=\'security\' GROUP BY log_id, time_id, log_type, action ORDER BY time_id DESC, action ASC;');
	if ( !$q )
		$db->_die();
	$row = $db->fetchrow();
	$db->free_result();
	$count = intval($row['num']);

	$l = 'SELECT action,date_string,author,author_uid,u.username,edit_summary,time_id,page_text FROM '.table_prefix."logs AS l\n"
 		. "  LEFT JOIN " . table_prefix . "users AS u\n"
 		. "    ON ( u.user_id = l.author_uid OR u.user_id IS NULL )\n"
 		. "  WHERE log_type='security'\n"
 		. "  ORDER BY time_id DESC, action ASC;";
 				
	$q = $db->sql_query($l);
	if ( !$q )
		$db->_die();
 	
	$html = paginate(
			$q,
			'{time_id}',
			$count,
			makeUrlNS('Special', 'Administration', 'module=' . $paths->nslist['Admin'] . 'SecurityLog&offset=%s'),
			$offset,
			50,
			array('time_id' => 'seclog_format_inner'),
			'<div class="tblholder" style="/* max-height: 500px; clip: rect(0px,auto,auto,0px); overflow: auto; */"><table border="0" cellspacing="1" cellpadding="4" width="100%">
 			<tr>
 				<th style="width: 60%;">' . $lang->get('acpsl_col_type') . '</th>
 				<th>' . $lang->get('acpsl_col_date') . '</th>
 				<th>' . $lang->get('acpsl_col_username') . '</th>
 				<th>' . $lang->get('acpsl_col_ip') . '</th>
 			</tr>',
			'</table></div>'
		);
	
	echo $html;
	
}

function get_security_log($num = false)
{
	global $db, $session, $paths, $template, $plugins; // Common objects
	global $lang;
	
	if ( $session->auth_level < USER_LEVEL_ADMIN )
	{
		$q = $db->sql_query('INSERT INTO '.table_prefix.'logs(log_type,action,time_id,edit_summary,author,author_uid) VALUES(\'security\',\'seclog_unauth\',' . time() . ', \'' . $db->escape($_SERVER['REMOTE_ADDR']) . '\', \'' . $db->escape($session->username) . '\', ' . $session->user_id . ');');
		if ( !$q )
			$db->_die();
		die('Security log: unauthorized attempt to fetch. Call has been logged and reported to the administrators.');
	}
	
	$return = '<div class="tblholder" style="/* max-height: 500px; clip: rect(0px,auto,auto,0px); overflow: auto; */"><table border="0" cellspacing="1" cellpadding="4" width="100%">';
	$cls = 'row2';                                                                                               
	$return .= '<tr><th style="width: 60%;">' . $lang->get('acpsl_col_type') . '</th><th>' . $lang->get('acpsl_col_date') . '</th><th>' . $lang->get('acpsl_col_username') . '</th><th>' . $lang->get('acpsl_col_ip') . '</th></tr>';
	$hash = sha1(microtime());
	if ( defined('ENANO_DEMO_MODE') )
	{
		require('config.php');
		$hash = md5($dbpasswd);
		unset($dbname, $dbhost, $dbuser, $dbpasswd);
		unset($dbname, $dbhost, $dbuser, $dbpasswd); // PHP5 Zend bug
	}
	// if ( defined('ENANO_DEMO_MODE') && !isset($_GET[ $hash ]) && substr($_SERVER['REMOTE_ADDR'], 0, 8) != '192.168.' )
	// {
	//   $return .= '<tr><td class="row1" colspan="4">Logs are recorded but not displayed for privacy purposes in the demo.</td></tr>';
	// }
	// else
	// {
		$limit_clause = is_int($num) ? " LIMIT $num" : '';
		$l = 'SELECT action,date_string,author,author_uid,u.username,edit_summary,time_id,page_text FROM '.table_prefix."logs AS l\n"
 				. "  LEFT JOIN " . table_prefix . "users AS u\n"
 				. "    ON ( u.user_id = l.author_uid OR u.user_id IS NULL )\n"
 				. "  WHERE log_type='security'\n"
 				. "  ORDER BY time_id DESC, action ASC{$limit_clause};";
		
		$q = $db->sql_query($l);
		while($r = $db->fetchrow($q))
		{
			$return .= seclog_format_inner($r);
		}
		$db->free_result();
	// }
	$return .= '</table></div>';
	
	return $return;
}

function seclog_format_inner($r, $f = false)
{
	if ( is_array($f) )
	{
		unset($r);
		$r =& $f;
	}
	global $db, $session, $paths, $template, $plugins; // Common objects
	global $lang;
	$return = '';
	static $cls = 'row2';
	if ( substr($_SERVER['REMOTE_ADDR'], 0, 8) != '192.168.' && defined('ENANO_DEMO_MODE') )
	{
		$r['edit_summary'] = preg_replace('/([0-9])/', 'x', $r['edit_summary']);
	}
	if ( $r['action'] == 'illegal_page' )
	{
		list($illegal_id, $illegal_ns) = unserialize($r['page_text']);
		$url = makeUrlNS($illegal_ns, $illegal_id, false, true);
		$title = get_page_title_ns($illegal_id, $illegal_ns);
		$class = ( isPage($paths->nslist[$illegal_ns] . $illegal_id) ) ? '' : ' class="wikilink-nonexistent"';
		$illegal_link = '<a href="' . $url . '"' . $class . ' onclick="window.open(this.href); return false;">' . $title . '</a>';
	}
	else if ( $r['action'] == 'plugin_enable' || $r['action'] == 'plugin_disable' )
	{
		$r['page_text'] = htmlspecialchars($r['page_text']);
	}
	$cls = ( $cls == 'row2' ) ? 'row1' : 'row2';
	$return .= '<tr><td class="'.$cls.'">';
	switch($r['action'])
	{
		case "admin_auth_good" : $return .= $lang->get('acpsl_entry_admin_auth_good'  , array('level' => $session->userlevel_to_string( intval($r['page_text']) ))); break;
		case "admin_auth_bad"  : $return .= $lang->get('acpsl_entry_admin_auth_bad'   , array('level' => $session->userlevel_to_string( intval($r['page_text']) ))); break;
		case "activ_good"      : $return .= $lang->get('acpsl_entry_activ_good')      ; break;
		case "auth_good"       : $return .= $lang->get('acpsl_entry_auth_good')       ; break;
		case "activ_bad"       : $return .= $lang->get('acpsl_entry_activ_bad')       ; break;
		case "auth_bad"        : $return .= $lang->get('acpsl_entry_auth_bad')        ; break;
		case "sql_inject"      : $return .= $lang->get('acpsl_entry_sql_inject'       , array('query' => htmlspecialchars($r['page_text']))); break;
		case "db_backup"       : $return .= $lang->get('acpsl_entry_db_backup'        , array('tables' => $r['page_text']))       ; break;
		case "install_enano"   : $return .= $lang->get('acpsl_entry_install_enano'    , array('version' => $r['page_text'])); break; // version is in $r['page_text']
		case "upgrade_enano"   : $return .= $lang->get('acpsl_entry_upgrade_enano'    , array('version' => $r['page_text'])); break; // version is in $r['page_text']
		case "illegal_page"    : $return .= $lang->get('acpsl_entry_illegal_page'     , array('illegal_link' => $illegal_link))    ; break;
		case "upload_enable"   : $return .= $lang->get('acpsl_entry_upload_enable')   ; break;
		case "upload_disable"  : $return .= $lang->get('acpsl_entry_upload_disable')  ; break;
		case "magick_enable"   : $return .= $lang->get('acpsl_entry_magick_enable')   ; break;
		case "magick_disable"  : $return .= $lang->get('acpsl_entry_magick_disable')  ; break;
		case "filehist_enable" : $return .= $lang->get('acpsl_entry_filehist_enable') ; break;
		case "filehist_disable": $return .= $lang->get('acpsl_entry_filehist_disable'); break;
		case "magick_path"     : $return .= $lang->get('acpsl_entry_magick_path')     ; break;
		case "plugin_disable"  : $return .= $lang->get('acpsl_entry_plugin_disable'   , array('plugin' => $r['page_text'])); break;
		case "plugin_enable"   : $return .= $lang->get('acpsl_entry_plugin_enable'    , array('plugin' => $r['page_text'])); break;
		case "plugin_install"  : $return .= $lang->get('acpsl_entry_plugin_install'   , array('plugin' => $r['page_text'])); break;
		case "plugin_uninstall": $return .= $lang->get('acpsl_entry_plugin_uninstall' , array('plugin' => $r['page_text'])); break;
		case "plugin_upgrade"  : $return .= $lang->get('acpsl_entry_plugin_upgrade'   , array('plugin' => $r['page_text'])); break;
		case "seclog_unauth"   : $return .= $lang->get('acpsl_entry_seclog_unauth')   ; break;
		case "u_from_admin"    : $return .= $lang->get('acpsl_entry_u_from_admin'     , array('username' => $r['page_text'])); break;
		case "u_from_mod"      : $return .= $lang->get('acpsl_entry_u_from_mod'       , array('username' => $r['page_text'])); break;
		case "u_to_admin"      : $return .= $lang->get('acpsl_entry_u_to_admin'       , array('username' => $r['page_text'])); break;
		case "u_to_mod"        : $return .= $lang->get('acpsl_entry_u_to_mod'         , array('username' => $r['page_text'])); break;
		case "view_comment_ip" : $return .= $lang->get('acpsl_entry_view_comment_ip'  , array('username' => htmlspecialchars($r['page_text']))); break;
		case "pass_reset"      : $return .= $lang->get('acpsl_entry_pass_reset'); break;
	}
	$author_bit = '<span style="';
	$rank_info = $session->get_user_rank($r['author_uid']);
	$author_bit .= $rank_info['rank_style'];
	$author_bit .= '">';
	$author_bit .= $r['author_uid'] > 1 && !empty($r['username']) ? htmlspecialchars($r['username']) : htmlspecialchars($r['author']);
	$author_bit .= '</span>';
	$return .= '</td><td class="'.$cls.'">'.enano_date(ED_DATE | ED_TIME, $r['time_id']).'</td><td class="'.$cls.'">'.$author_bit.'</td><td class="'.$cls.'" style="cursor: pointer;" onclick="ajaxReverseDNS(this);" title="' . $lang->get('acpsl_tip_reverse_dns') . '">'.$r['edit_summary'].'</td></tr>';
	return $return;
}

?>
